diff options
Diffstat (limited to 'backport')
| -rw-r--r-- | backport/backport-include/linux/atomic.h | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/backport/backport-include/linux/atomic.h b/backport/backport-include/linux/atomic.h index 378b748f..41b769be 100644 --- a/backport/backport-include/linux/atomic.h +++ b/backport/backport-include/linux/atomic.h @@ -6,41 +6,7 @@ #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,36)) #include_next <linux/atomic.h> #else - #include <asm/atomic.h> - -/** - * atomic_inc_not_zero_hint - increment if not null - * @v: pointer of type atomic_t - * @hint: probable value of the atomic before the increment - * - * This version of atomic_inc_not_zero() gives a hint of probable - * value of the atomic. This helps processor to not read the memory - * before doing the atomic read/modify/write cycle, lowering - * number of bus transactions on some arches. - * - * Returns: 0 if increment was not done, 1 otherwise. - */ -#ifndef atomic_inc_not_zero_hint -static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint) -{ - int val, c = hint; - - /* sanity test, should be removed by compiler if hint is a constant */ - if (!hint) - return atomic_inc_not_zero(v); - - do { - val = atomic_cmpxchg(v, c, c + 1); - if (val == c) - return 1; - c = val; - } while (c); - - return 0; -} -#endif - #endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,36)) */ #endif /* _COMPAT_LINUX_ATOMIC_H */ |